Search results for “stable orbit”

What Happens at an Event Horizon?

For more Science Videos: https://lt.org/ * Every galaxy seems to have a supermassive black hole in its center. A black hole is defined as such because nothing can escape from a certain point inside, not even light. There is, however, a last stable orbit which is called the event horizon outside of w

Why Doesn't the Moon Fall Down?

Astronomer Doris Daou explains how the forces of speed and gravity keep the Moon in a constant orbit around Earth in this animated video segment adapted from NASA. The Moon, Earth's natural satellite, seems to hover in the sky, unaffected by gravity. However, the reason the Moon stays in orbit is pr

Noble gases and the noble gas configuration

Topics of the video: 0:11 Which gases are noble gases? 0:36 Where can I find noble gases? 1:41 Why are the noble gases called "noble"? 2:27 Atomic construction - according to Bohr's shell model + noble gas configuration and octet rule 3:57 How do other atoms - other elements - achieve the noble gas

Mapping the Moon's Gravity | NASA Planetary Sciences

Launched in September 2011, find out about the Gravity Recovery and Interior Laboratory (GRAIL) mission to measure the gravitational field of the Moon and study how the Moon developed over time. Animations illustrate technical aspects of the mission's design, including the launch, orbital insertion

Lunar Eclipse Essentials | NASA Planetary Sciences

Discover what happens during a lunar eclipse in this video from NASA. The orbit of the Moon around Earth causes the monthly phases of the Moon; lunar eclipses occur when the Moon passes through Earth's shadow. The video shows how the appearance of the Moon changes as it passes through Earth's penumb

08 The Noble Gas Configuration

The noble gas configuration is a particularly stable electron configuration. The driving force for many chemical phenomena is this state. It should be remembered again that the nucleus is not altered during chemical reactions. Original: "Wolfgang Dukorn" Original: German. All translations in this